I have an airforce bipod on my Texan. When I am shooting I have to re-level the gun after every shot. Not sure I really understand how to work the bipod. Should I be able to level the gun and lock the bipod in somehow? I am not very familiar with bipods and honestly have no idea what I'm doing when it comes to this thing!!!! Attached is a picture of the bipod itself. I do not even know what all of the screws on the thing are for!!